—used to refer to a small amount
It cooks in a matter of (a few) minutes.The crisis was resolved in a matter of a few hours.The ball was foul by a matter of inches.
—used to say that one thing results from or requires another
Learning to ride a bicycle is a matter of practice.His success was just a matter of being in the right place at the right time.It's only a matter of time before/until we catch him.
—used to explain the reason for something
She insists on honesty as a matter of principle.All requests for free tickets are turned down as a matter of policy.
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